-91.74% is the change from 823 to 68
Calculation steps:
[( 68 - 823 ) ÷ 823] x 100 = -91.74%
Formula
Percentage change = [(68 - 823) / 823] x 100
Subtract the new number by the original number
68 - 823 = -755
-755 ÷ 823 = -0.9173754556500607
-0.9173754556500607 x 100 = -91.74%